LXR linux/arch/csky/abiv1/inc/abi/ckmmu.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2
   3#ifndef __ASM_CSKY_CKMMUV1_H
   4#define __ASM_CSKY_CKMMUV1_H
   5#include <abi/reg_ops.h>
   6
   7static inline int read_mmu_index(void)
   8{
   9        return cprcr("cpcr0");
  10}
  11
  12static inline void write_mmu_index(int value)
  13{
  14        cpwcr("cpcr0", value);
  15}
  16
  17static inline int read_mmu_entrylo0(void)
  18{
  19        return cprcr("cpcr2") << 6;
  20}
  21
  22static inline int read_mmu_entrylo1(void)
  23{
  24        return cprcr("cpcr3") << 6;
  25}
  26
  27static inline void write_mmu_pagemask(int value)
  28{
  29        cpwcr("cpcr6", value);
  30}
  31
  32static inline int read_mmu_entryhi(void)
  33{
  34        return cprcr("cpcr4");
  35}
  36
  37static inline void write_mmu_entryhi(int value)
  38{
  39        cpwcr("cpcr4", value);
  40}
  41
  42static inline unsigned long read_mmu_msa0(void)
  43{
  44        return cprcr("cpcr30");
  45}
  46
  47static inline void write_mmu_msa0(unsigned long value)
  48{
  49        cpwcr("cpcr30", value);
  50}
  51
  52static inline unsigned long read_mmu_msa1(void)
  53{
  54        return cprcr("cpcr31");
  55}
  56
  57static inline void write_mmu_msa1(unsigned long value)
  58{
  59        cpwcr("cpcr31", value);
  60}
  61
  62/*
  63 * TLB operations.
  64 */
  65static inline void tlb_probe(void)
  66{
  67        cpwcr("cpcr8", 0x80000000);
  68}
  69
  70static inline void tlb_read(void)
  71{
  72        cpwcr("cpcr8", 0x40000000);
  73}
  74
  75static inline void tlb_invalid_all(void)
  76{
  77        cpwcr("cpcr8", 0x04000000);
  78}
  79
  80
  81static inline void local_tlb_invalid_all(void)
  82{
  83        tlb_invalid_all();
  84}
  85
  86static inline void tlb_invalid_indexed(void)
  87{
  88        cpwcr("cpcr8", 0x02000000);
  89}
  90
  91static inline void setup_pgd(pgd_t *pgd, int asid)
  92{
  93        cpwcr("cpcr29", __pa(pgd) | BIT(0));
  94        write_mmu_entryhi(asid);
  95}
  96
  97static inline pgd_t *get_pgd(void)
  98{
  99        return __va(cprcr("cpcr29") & ~BIT(0));
 100}
 101#endif /* __ASM_CSKY_CKMMUV1_H */
 102